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A Process For The Preparation Of Celecoxib
Abstract: There is provided a process for the preparation of celecoxib by reacting4,4,4,-trifluoro-1-1[4-(methyl]butane-1,3-dione with 4-sulphonamidophenylhydrazine or its salt in solvent medium that contains an alkyl ester, There is also provided a process for the purification of celecoxib using aromatic hydrocarbon solvents,
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
19 March 2007
Publication Number
48/2008
Publication Type
INA
Invention Field
CHEMICAL
Status
Email
Parent Application
Applicants
DR.REDDYS LABORATORIES LIMITED
7-1-27, AMEERPET, HYDERABAD, ANDRAPRADESH, INDIA 500 016
Inventors
1. ANUMULA RAGHUPATHI REDDY
MIC-II, 231, IX PHASE, KPHB COLONY,HYDERABAD, ANDRA PRADESH, INDIA 500072
2. GILLA GOVERDHAN
GAYATRI RESIDENCY,
FLAT NO.205, GANAGARAM, HYDERABAD, INDIA
3. ALLA SAMPATH
POTKAPLLY VILLAGE, VODELA MANDAL, KARIM NAGAR, ANDRA PRADESH, INDIA
4. BOJJA YAKAMBRAM
H. NO. 15-37, WARADANNAPET, WARANGAL , ANDRA PRADESH, INDIA
5. AKKI THIRUPATTI REDDY
H.NO. 20-29/1, VIDYANAGARI, HUZURABAD POST,
KARIM NAGAR,
ANDRA PRADESH, INDIA
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 558-che-2007 form-3 08-02-2011.pdf | 2011-02-08 |
| 1 | 558-CHE-2007-AbandonedLetter.pdf | 2017-07-17 |
| 2 | 558-CHE-2007-FER.pdf | 2016-08-31 |
| 2 | 558-CHE-2007 FORM-18 08-02-2011.pdf | 2011-02-08 |
| 3 | 558-che-2007 correspondence others 08-02-2011.pdf | 2011-02-08 |
| 3 | 0558-che-2007-correspondnece-others.pdf | 2011-09-03 |
| 4 | 0558-che-2007-description(provisional).pdf | 2011-09-03 |
| 4 | abs-558-che-2007.pdf | 2011-09-03 |
| 5 | 558-che-2007claim.pdf | 2011-09-03 |
| 5 | 0558-che-2007-drawings.pdf | 2011-09-03 |
| 6 | 558-che-2007-complete-2.pdf | 2011-09-03 |
| 6 | 0558-che-2007-form 1.pdf | 2011-09-03 |
| 7 | 558-che-2007-complete 1.pdf | 2011-09-03 |
| 7 | 0558-che-2007-form 3.pdf | 2011-09-03 |
| 8 | 558-che-2007-complete 1.pdf | 2011-09-03 |
| 8 | 0558-che-2007-form 3.pdf | 2011-09-03 |
| 9 | 558-che-2007-complete-2.pdf | 2011-09-03 |
| 9 | 0558-che-2007-form 1.pdf | 2011-09-03 |
| 10 | 0558-che-2007-drawings.pdf | 2011-09-03 |
| 10 | 558-che-2007claim.pdf | 2011-09-03 |
| 11 | 0558-che-2007-description(provisional).pdf | 2011-09-03 |
| 11 | abs-558-che-2007.pdf | 2011-09-03 |
| 12 | 558-che-2007 correspondence others 08-02-2011.pdf | 2011-02-08 |
| 12 | 0558-che-2007-correspondnece-others.pdf | 2011-09-03 |
| 13 | 558-CHE-2007-FER.pdf | 2016-08-31 |
| 13 | 558-CHE-2007 FORM-18 08-02-2011.pdf | 2011-02-08 |
| 14 | 558-CHE-2007-AbandonedLetter.pdf | 2017-07-17 |
| 14 | 558-che-2007 form-3 08-02-2011.pdf | 2011-02-08 |
Search Strategy
| 1 | WO03099794A1_30-08-2016.pdf |
| 2 | WO03099794A1_30-08-2016.pdf |